Home / 97,928.50-135,182.67-66,140.46

Finding the Fourth Proportional to 97,928.50, 135,182.67 and 66,140.46

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Solution

The fourth proportional to 97,928.50, 135,182.67 and 66,140.46 is: 91,301.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,928.50 : 135,182.67 = 66,140.46 : x
  2. Step 2: Convert to fraction form
    97,928.50/135,182.67 = 66,140.46/x
  3. Step 3: Cross multiply
    97,928.50x = 135,182.67 × 66,140.46
  4. Step 4: Simplify right side
    97,928.50x = 8,941,043,301.91
  5. Step 5: Solve for x
    x = 8,941,043,301.91/97,928.50
  6. Step 6: Final answer
    x = 91,301.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.